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首页> 外文期刊>International Journal of Information Technology >Introduction of an Approach of Complex Virtual Devices to Achieve Device Interoperability in Smart Building Systems
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Introduction of an Approach of Complex Virtual Devices to Achieve Device Interoperability in Smart Building Systems

机译：引入复杂虚拟设备的方法以实现智能建筑系统中的设备互操作性

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One of the major challenges for sustainable smart building systems is to support device interoperability, i.e. connecting sensor or actuator devices from different vendors, and present their functionality to the external applications. Furthermore, smart building systems are supposed to connect with devices that are not available yet, i.e. devices that become available on the market sometime later. It is of vital importance that a sustainable smart building platform provides an appropriate external interface that can be leveraged by external applications and smart services. An external platform interface must be stable and independent of specific devices and should support flexible and scalable usage scenarios. A typical approach applied in smart home systems is based on a generic device interface used within the smart building platform. Device functions, even of rather complex devices, are mapped to that generic base type interface by means of specific device drivers. Our new approach, presented in this work, extends that approach by using the smart building system’s rule engine to create complex virtual devices that can represent the most diverse properties of real devices. We examined and evaluated both approaches by means of a practical case study using a smart building system that we have developed. We show that the solution we present allows the highest degree of flexibility without affecting external application interface stability and scalability. In contrast to other systems our approach supports complex virtual device configuration on application layer (e.g. by administration users) instead of device configuration at platform layer (e.g. platform operators). Based on our work, we can show that our approach supports almost arbitrarily flexible use case scenarios without affecting the external application interface stability. However, the cost of this approach is additional appropriate configuration overhead and additional resource consumption at the IoT platform level that must be considered by platform operators. We conclude that the concept of complex virtual devices presented in this work can be applied to improve the usability and device interoperability of sustainable intelligent building systems significantly.
机译：可持续智能建筑系统的主要挑战之一是支持设备的互操作性，即连接来自不同供应商的传感器或执行器设备，并将其功能展示给外部应用程序。此外，智能建筑系统应该与尚不可用的设备连接，即稍后某个时间在市场上可用的设备。至关重要的是，可持续的智能建筑平台必须提供适当的外部接口，外部应用程序和智能服务可以利用该接口。外部平台接口必须稳定且独立于特定设备，并应支持灵活和可扩展的使用方案。智能家居系统中使用的一种典型方法是基于智能建筑平台中使用的通用设备接口。设备功能，甚至是相当复杂的设备，都通过特定的设备驱动程序映射到该通用基本类型接口。本文中介绍的我们的新方法通过使用智能建筑系统的规则引擎来创建复杂的虚拟设备，从而扩展了该方法，该虚拟设备可以代表真实设备的最多种属性。通过使用我们开发的智能建筑系统的实际案例研究，我们检查并评估了这两种方法。我们表明，我们提出的解决方案可以在不影响外部应用程序接口稳定性和可伸缩性的情况下提供最高程度的灵活性。与其他系统相比，我们的方法支持在应用程序层（例如，由管理用户）进行复杂的虚拟设备配置，而不是在平台层（例如，平台运营商）进行设备配置。根据我们的工作，我们可以证明我们的方法支持几乎任意灵活的用例场景，而不会影响外部应用程序接口的稳定性。但是，此方法的成本是平台运营商必须考虑的额外适当的配置开销和IoT平台级别的额外资源消耗。我们得出结论，这项工作中提出的复杂虚拟设备的概念可以应用于显着提高可持续智能建筑系统的可用性和设备互操作性。

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